Answer:
The Second Battle of the Marne caused the Central Powers to collapse. In July 1918, the Allies and Germans clashed at the Second Battle of the Marne. ... With the arrival of 2 million more American troops, the Allied forces began to advance steadily toward Germany. The war would soon be over.
Explanation:
Economies in the eastern coastal lowlands based on large plantations
The answer would be : The counterculture
The counterculture era was the reaction to political conservatism of current establishment in that era ( back then , the united states propose a lot of wars that created social repression). In the 1960s, a lot of youth formed various groups to protest the Government conservatism